Viessmann Heat Pumps

VIESSMANN VITOCAL 350-G (master)
20.5 to 42.3 kW (single stage)
41.0 to 84.6 kW (two-stage)

1 Vitotronic 200 control unit
2 Condenser
3 Large area evaporator for an efficient exchange of heat
4 Hermetically sealed Compliant scroll compressor with EVI (enhanced vapour injection) process
The powerful Vitocal 350-G brine/water heat pump is one of the quietest heat generators of its kind, thanks to its low-vibration design. Where heat demand is even higher, the Vitocal 350-G can be operated in two-stage mode with an additional heat pump of the same type, or with a Vitocal 300-G in a master/slave system, and can then provide an output of up to 84.6 kW. As early as at the design stage, this system configuration allows for optimum matching of the heat pumps to the heat demand.

Master/slave system for DHW and central heating 
In a master/slave system, the Vitocal 350-G (master) delivers high flow temperatures for DHW heating, while the Vitocal 300-G (slave, without its own control unit) covers the required heat load. The EVI refrigerant circuit enables the Vitocal 350-G to achieve an extremely high COP of up to 5.0, which contributes to its low operating costs.

Vitotronic 200 control unit with communication capability

Viessmann uses the convenient Vitotronic 200 control unit to ensure standardised operation for all its heat generators. The many functions of this control unit include operation with user prompts, an integral diagnostic system, control of the instantaneous heating water heater and an additional oil or gas boiler, and of course, natural and active cooling functions.

Furthermore, the Vitotronic 200 is capable of communicating, and via the Vitocom 300 module, allows the heat pump system to be set up, monitored and optimised over the internet with the Vitotrol app on a smartphone or tablet.

Operation with solar power generated on site 
​The Vitocal 350-G heat pump is already prepared for the utilisation of more affordable power generated on site by a PV system. An intelligent control unit ensures maximum consumption of self-generated power while lowering energy costs.
Benefits

1. Brine/water heat pump ​

• Single stage heating output: 20.5 to 42.3 kW, two-stage: 41.0 to 84.6 kW „ Water/water heat pump 

2. Water/water heat pump

• Single stage heating output: 25.4 to 52.3 kW, two-stage: 50.8 to 117.8 kW „

3. Low operating costs thanks to high coefficient of performance (COP) to EN 14511 of up to 5.0 (B0/W35) „ 
4. Flow temperature: up to 70 °C

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